In context of the given picture ,answer the following questions :

How many peptide chains are present in each antibody molecule ?

4

The correct answer is Option (4) – 4

The two heavy chains and two light chains, resulting in a total of four chains. The heavy chains are larger and have a more complex structure, while the light chains are smaller. The light chains are connected to the heavy chains by disulfide bonds, forming the overall antibody structure .Antibody molecule has four peptide chains, two small called light chains and two longer called heavy chains. Hence, an antibody is represented as H2L2 . In summary, antibodies consist of two heavy chains and two light chains, resulting in a total of four chains in each antibody molecule. B-lymphocytes  primarily function in the humoral immune response by producing antibodies. They are responsible for the production of antibodies that specifically target foreign antigens.